> For the complete documentation index, see [llms.txt](https://docs.httpsms.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.httpsms.com/introduction.md).

# Introduction

- [Getting Started](https://docs.httpsms.com/introduction/getting-started.md): httpSMS is an open-source service that converts your Android phone into an SMS Gateway so you can send and receive SMS messages using an intuitive HTTP API with support for end-to-end encryption.